13.62% is the change from 639 to 726
Calculation steps:
[( 726 - 639 ) ÷ 639] x 100 = 13.62%
Formula
Percentage change = [(726 - 639) / 639] x 100
Subtract the new number by the original number
726 - 639 = 87
87 ÷ 639 = 0.13615023474178403
0.13615023474178403 x 100 = 13.62%